Tabata Mash up
A Tabata is 20 seconds "work" and 10 seconds "rest" for 4 minutes. For the mash-up, you will do 20 seconds of sit ups, rest 10 seconds, then do 20 seconds of push ups, rest 10 seconds. You will repeat for a total of 16 intervals (alternating 8 each sit ups and push ups.) Your "score" is the total number of sit ups for all sit up intervals, and the total number of push ups for all push up intervals.